Sash-lock.



W. R. GILMORE.

SASH LOCK.

APPLICATION FILED JUNE s, 1913.

4 9 7; Patented Apr. 28, 1914.

IN E T WITNESSES: 242 2 22i,

MM Mk1 flag! ATTORNEY NI'IED STATES PATENT OFFICE.

WILLIAM R. GILMORE, OF RICHMOND, CALIFORNIA, ASSIGNOR OF ONE-FOURTH TO IVIICHAEL.J. FITZGERALD AND ONE-FOURTH TO CHARLES H. BROWN, BOTH OF RICHMOND, CALIFORNIA.

SASI-I-LOCK.

To aZZ whom it may concern:

Be it known that I, \VILLIA'M R. GILMORE, a citizen of the United States, residing at Richmond, in the county of Contra Costa and State of California, have invented new and useful Improvements in Sash-Locks, of which the following is a specification.

The object of the present invention is to provide a lock for window sashes which shall be cheap and simple in construction, will not readily get out of order, and which can very effectively secure the window sashes at any desired relative position.

In the accompanying drawing, Figure 1 is a vertical section of portions of Window sashes equipped with my improved sash lock; Fig. 2 is a similar view, showing the invention in a modified form; Fig. 3 is a broken inside view of said sashes, showing the latter modification of the invention.

Referring to the drawing, 1 indicates an upper and 2 a lower sash of a window. Secured by screws 3 to the top of the upper rail 4 ofthe lower sash is thebase 6 of a housing 7, comprising, integral with said base, two vertical parallel walls 8 spaced a short distance from each other and a rear wall 9, all the walls being of the same height. Said walls and base thus form a chamber 10 open at the top and also at the side next the adjacent side rail of the upper sash. Connecting said side walls near the upper edges is a horizontal pin or shaft 11, upon which is pivoted an eccentric 12 around which is secured a sleeve 13 preferably of hard rubber. In said chamber be tween said eccentric and the rear wall 9 is contained an L-shaped releaser 14. Said releaser and eccentric 12 are of such thickness that they fit loosely within the chamber 10. The bottom of said releaser has a plane surface which, in the lowermost position of the key, rests upon the bottom of the chamber 10, and the rear side of said releaser is plane in its upper part and fits in said lastnamed position closely against the rear wall of the chamber 10 and substantially fills the space within the housing between its rear wall and the upper portion of the eccentric. The lower portion of said rear side of the releaser, however, is formed with a notch or recess 15, which, if the releaser is raised and the upper portion moved rearwardly, rests upon the top of the rear wall 9 of the chamber.

Specification of Letters Patent.

Application filed June 3, 1913.

Patented Apr. 28, 1914.

Serial No. 771,413.

If from any cause, the sashes are moved transversely away from each other, the eccentric immediately drops to a lower position, and the releaser follows this movement.

To release the device, the releaser is raised, and its lower portion abuts against the under side of the eccentric, lifting it out of contact with the upper sash. The releaser can be held in an elevated position by causingthe notch 15 therein to engage the top of the rear wall of the chamber. The upper portion of the releaser, projecting, in its lowermost position, outside the housing, is free from cavities and recesses which can be operatively engaged by a hooked end of a wire to raise the releaser, but the releaser can only be raised by grasping with the fingers said upper portion.

In the modification shown in Figs. 2 and 3, the device, instead of being permanently secured to the top of the window sash, is made portable. In this case the base of the housing is extended transversely, as shown at 20, then downwardly, as shown at 16, and then inwardly, as shown at 17, and a thumb screw 18 screwed through said inward extension 17 secures the housing in position.

I claim 1. The combination of a housing open at the top and front and having side walls and a rear wall, means for securing it with its front side adjacent to a window sash, an eccentric pivoted between the side walls to swing through the front of the housing, a releaser slidable between the eccentric and the rear wall of the housing, and having an upper portion engaging the outer surface of the eccentric above its pivot and a lower portion arranged to engage said outer surface below its pivot.

2. The combination of a housing open at the top and front and having side walls and a rear wall, means for securing it with its front side adjacent to a window sash, an eccentric pivoted between the side walls to swing through the front of the housing, a releaser slidable between the eccentric and the rear wall of the housing, and having an upper portion engaging the outer surface of the eccentric above its pivot and a lower portion arranged to engage said outer surface below its pivot, said upper portion, when in its lowermost position, substantially filling the interior of the housing between said rear wall and the upper portion of the eccentric, and its projecting portion being free from cavities and recesses which could be operatively engaged by a hook to raise the releaser.

3. The combination of a housing, means for securing it to a Window sash, a Wedging device movably secured to said housing, and a releaser in the housing formed on its rear edge with a notched portion adapted to engage the top of a Wall of the housing and support it in an inoperative position, and having an upper portion arranged to be XVILLIAM R. GILMORE. XVitnesses G120. E. VALENCIA, FRANCIS M. WRIGHT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

